Remember that ping often uses gethostbyname system/kernel call where traceroute often uses the actual DNS lookup. You can also easily test whether the entries are indeed in DNS by using nslookup or dig
Yes, ping (and traceroute) use gethostbyname() for resolving hostnames. And gethostbyname() goes to /etc/nsswitch.conf that must have the line
to consider first /etc/hosts then DNS.
I'm nearly finished my program i've got everything in place and than when i run it it comes back with the reply mv: command not found. This is the code that seems to be causing the problem.
elif
then
echo "There are more than one '$1' files in the system."
echo "Please... (2 Replies)
Hi.
I just installed the HP-UX 11i V2.
I have problems with CDE - it is inoperative (after logon there is a message box: messaging system failure - or something like that, it asks to check /etc/hosts and network settings).
nslookup works by hostname and IP, hostname shown the correct... (7 Replies)
hi folks,
i've got a blank hp visualize C3000 workstation and installed HP-UX 11.11. When I want to start X, I get the following error message:
# X
Fatal server error:
Couldn't open X pointer device! Is one attached?
I've connected an mouse and a keyboard with an usb/ps2 connector.... (5 Replies)
Hi All,
My current setup is:
1x Windows Server (Windows 2000 server)
1x Unix Server
2x Windows machine
3x Unix Terminals (Hostnames = A, B and C)
Problem
The problem iam having is Unix terminal C cannot be ping across by Unix terminal A or B or Unix server by using the hostname. Unix... (1 Reply)
I recently installed Solaris 10 on my Sun workstation. I cannot ping using hostname from another computer on the same network.
But I can ping using the IP address. Also I can ping other systems using their hostnames.
Can anyone give some information regarding how to resolve this issue. (4 Replies)
Hello everyone
I have a partition with a problem with ping.
If I do a ping by ip for example ping 1.1.1.1 I got no problem but If I ping by hostname for example ping partition1 take almost a minute to respond me.
I have Aix 5.3 and I have another 19 partitions with no problem. The only... (5 Replies)
anyone ever seen this problem:
I can ping the server by IP address but I can't by hostname.
nslookup is working and dns query is ok.
# nslookup mwxnsb24
Server: 10.11.49.206
Address: 10.11.49.206#53
Name: mwxnsb24
Address: 10.10.58.175
# ping... (8 Replies)
Hi.
Here is beginning of my script
#!/usr/local/bin/expect --
set timeout 15
spawn /usr/local/account.sh -n modify
expect "Password:" {send "mypassword\r"}
But due to some terminal control sequences (or something else, dunno exactly) my password prompt is looking like this:
and expect... (3 Replies)
Hello, Unix-forums!
My problem:
read -p "Enter any number, please" number
sleep 1
echo $number | tr -d 0-9
test -z $number && echo "Thank you" || echo "This is not a number"Test always displays "This is not a number". It doesn't matter if I entered a or 1.
But if I order
echo... (2 Replies)
Discussion started by: intelinside
2 Replies
LEARN ABOUT REDHAT
host.conf
HOST.CONF(5) Linux System Administration HOST.CONF(5)NAME
host.conf - resolver configuration file
DESCRIPTION
The file /etc/host.conf contains configuration information specific to the resolver library. It should contain one configuration keyword
per line, followed by appropriate configuration information. The keywords recognized are order, trim, multi, nospoof, and reorder. These
keywords are described below.
order This keyword specifies how host lookups are to be performed. It should be followed by one or more lookup methods, separated by com-
mas. Valid methods are bind, hosts, and nis.
trim This keyword may be listed more than once. Each time it should be followed by a single domain name, with the leading dot. When
set, the resolv+ library will automatically trim the given domain name from the end of any hostname resolved via DNS. This is
intended for use with local hosts and domains. (Related note: trim will not affect host- names gathered via NIS or the hosts file.
Care should be taken to ensure that the first hostname for each entry in the hosts file is fully qualified or non-qualified, as
appropriate for the local installation.)
multi Valid values are on and off. If set to on, the resolv+ library will return all valid addresses for a host that appears in the
/etc/hosts file, instead of only the first. This is off by default, as it may cause a substantial performance loss at sites with
large hosts files.
nospoof
Valid values are on and off. If set to on, the resolv+ library will attempt to prevent hostname spoofing to enhance the security of
rlogin and rsh. It works as follows: after performing a host address lookup, resolv+ will perform a hostname lookup for that
address. If the two hostnames do not match, the query will fail.
spoofalert
If this option is set to on and the nospoof option is also set, resolv+ will log a warning of the error via the syslog facility.
The default value is off.
reorder
Valid values are on and off. If set to on, resolv+ will attempt to reorder host addresses so that local addresses (i.e., on the
same subnet) are listed first when a gethostbyname(3) is performed. Reordering is done for all lookup methods. The default value
is off.
FILES
/etc/host.conf
Resolver configuration file
/etc/resolv.conf
Resolver configuration file
/etc/hosts
Local hosts database
SEE ALSO gethostbyname(3), hostname(7), resolv+(8), named(8)Debian GNU/Linux 1997-01-02 HOST.CONF(5)